PURINE NUCLEOSIDE PHOSPHORYLASE DEFICIENCY (PNP) | |
NUCLEOSIDE PHOSPHORYLASE; IMMUNODEFICIENCY | |
613179
OMIM = Online Mendelian Inheritance of Men | |
760 | |
purine nucleoside phosphorylase | |
2.4.2.1 | |
14q13.1 |
|
D81.5 | |
rare autosomal recessive mutation in the PNP gene | |
Laboratory findings | Uric acid dec (serum) 2-Deoxyguanosine inc (urine) 2-Deoxyuridine inc (urine) Guanosine inc (serum) Guanosine inc (urine) Inosine inc (urine) Inosine inc (serum) Nucleoside phosphorylase dec (fibroblasts) Nucleoside phosphorylase dec (erythrocytes) Orotic acid normal/inc (urine) Uric acid dec (urine) |
Symptoms | anemia ataxia behavior, abnormal or bizarre, confusion developmental delay failure to thrive hypertonia, spasticity hypotonia infections (severe or recurrent) infections (urinary tract) lymphopenia mental retardation neutropenia (decreased neutrophils) onset, childhood onset, infancy onset, neonatal pneumonia spastic diplegia/quadriplegia/tetraplegia splenomegaly (large spleen) strokelike episodes tremor or twitching |